Metastable Phase Synthesis via Electromagnetic Field Interactions
Abstract
Nonequilibrium phase transitions and developing metastable phases of matter is a broad and emerging research in the area of new materials design and discovery. Much research has been oriented toward inducing nonequilibrium phases through external means. The principle behind most of these techniques is to disturb the electronic or mechanical system to drive the phase transition to a new thermodynamic state. However, conventional methods are generally either limited to the surface, create randomly mixed phases, or alter the physical properties of the pristine meta-stable phases. The long-range order in the crystal is associated with phonons. The electromagnetic field (EMF) can be absorbed by the 2-phonon interaction, leading to the breakage of the long-range order responsible for cooperative interactions. Once the cooperative chain is broken, the distortion is suppressed; hence, the more symmetric phase can be retained in favor of the higher entropy resulting in phase retention in the crystal.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 29, 2024
- Source ID
- FA95502310302
Entities
People
- Daryoosh Vashaee
Organizations
- Air Force Office of Scientific Research
- North Carolina State University
- United States Air Force